JP4896030B2 - Track assembly for cloth support - Google Patents

Description

  The present invention relates generally to cloth wall coverings. More particularly, the present invention relates to a track assembly for supporting a fabric with a high tensile force on a wall-like surface, even in a thick assembly containing, for example, a sound absorbing panel.

  It is known to provide a frame formed of plastic channel that is secured to the peripheral region of the inner wall to be covered with fabric by staples or other means. U.S. Pat. Nos. 4,403,642 and 6,164,364 disclose a track assembly having two track halves, each of which combines fabrics and two tracks together. One half of the hinge to clamp and a snap clamp. Such an assembly functions substantially well on an inner wall or the like to be covered with a cloth.

  Such walls are formed of unfinished seat locks, plaster, cinder blocks, concrete or wood and require no preparation other than installation of the channel. The fabric material to be applied to the frame is first cut to the exact dimensions required, taking into account that the fabric sheet is subjected to tensile forces on the frame. The installation procedure is defined to pull the fabric up, down, left and right, thereby giving the fabric wall covering a naturally smooth and taut finish. Preferably, the fabric is pulled as tight as possible to achieve a smooth and taut finish. When the fabric portion becomes quite large, this pull will cause significant distortion of the track frame.

  However, the track assemblies disclosed in the '642 and' 364 patents have various drawbacks. The first disadvantage is that it is very difficult to close and lock the upper track member that attaches the fabric to the base track member due to the large tensile force applied from the fabric to the upper and lower tracks. The snap clamp hook and stop are only a fraction of an inch in size, and the hook and stop move a fraction of an inch so that the hook stops engage and lock together. To do so, it is necessary to strike with a mallet.

  The track assemblies of the '642 and' 364 patents are 0.5 inch systems. There are other cases, such as when a thicker system is required when using thermal insulation or sound absorbing panels in the track perimeter. Hard glass fiber panels, typically 1 inch thick, have become the standard for insulating and absorbing sound in commercial buildings. Glass fiber panels offer the advantage of sound absorption in addition to energy conservation. Such panels are common in cinemas and other theaters where acoustic quality is important. The acoustic energy hits the panel and is converted to heat. A certain percentage of the sound is absorbed and reflected by the thickness and density of the glass fiber.

  When used as a sound-absorbing finish, fiberglass panels require that a decorative dressing, usually cloth or vinyl, be applied to the panel surface. Conventional pasting of coating materials relies on adhesives to bond and secure the coating to the panel. Wrap the edge of the panel and glue it back to the back of the panel. Due to the soft sponge properties of the covering, the edges tend to be soft and tend to be uneven due to the dents caused by the handling of the panel. When rolled and installed adjacent to other panels, the edges do not fit one another and an unpleasant gap often occurs.

  To counter this problem, finishing panel suppliers typically treat soft panel edges with a non-viscous liquid resin that is sucked into a glass mat. When cured, the resin hardens and can be finished to achieve straight edges of various shapes. This application achieves a good quality edge.

  However, these gains are not necessarily beneficial in achieving the desired specific sound absorption objective. Rigid glass fiber panel manufacturers provide the raw sound absorption rating of the panel product in its raw state, as relied upon by the consumer. However, there is a significant difference between the sound absorption rating indicated by the manufacturer and what is actually delivered by the builder who finished the panel to achieve a straight permanent edge. Furthermore, such a sound absorption grade may be changed by spraying the glass fiber with an adhesive that secures the dressing. The adhesive acts as a barrier against sound transmission and reduces the sound absorption effect of the panel. Furthermore, the resin is a solid material that highly reflects sound. As mentioned above, the main purpose of such glass fiber panels is to absorb sound and minimize sound reflection.

  Another problem with currently existing fiberglass panels is that they are fixed size panels and do not consider covering a square wall. In addition, if the consumer wants to change the decoration, all sound absorbing materials must be replaced at high cost.

  Unfortunately, the track assemblies of the '642 and' 364 patents relate to products that are only 0.5 inch systems. From both a geometric and raw material standpoint, these designs are impractical for fitting the dimensions of 1 inch glass fiber panel systems. New contours (eg slope, bull nose, square contours) are proposed by doubling the distance from the wall in terms of taking into account different dimensional, geometric, and material deviations not found in the prior art. Adversely affects the products that are being used. There is a problem that the upper bracket actually disengages from the lower bracket due to the force applied to the track assembly by the pulled fabric. The overall shape of the track assembly is rectangular. When the fabric is pulled, the force applied to the assembly may distort and deform the rectangle into a parallelogram. High tensile forces can cause the fabric to disengage from or not engage the snap clamp. The hinges of these devices can also be problematic. These problems are particularly acute with 1 inch systems.

  Accordingly, there is a continuing need for a fabric mounting track assembly in which hooks and stop members are designed to more easily engage and lock together. What is needed is a track assembly design that is reinforced to withstand the tendency to become deformed. There is also a continuing need for a fabric mounting assembly specifically designed for glass fiber acoustic panels. Such an assembly can cover the glass fiber panel with an aesthetically pleasing fabric without substantially changing the sound absorbing performance of the panel. In addition, such an assembly can be used in a timely manner to accommodate decoration changes or provide access to the wiring, equipment or sound absorber behind the fabric without replacing the insulation or sound absorber or the truck assembly. It must be possible to change the fabric. The present invention satisfies these needs and provides other related advantages.

  The present invention resides in a track assembly that supports a fabric on a surface that overcomes the disadvantages and disadvantages of the prior art. A track assembly generally has a base track that defines a first half of a hinge and a first half of a snap clamp. The upper track constitutes the second half of the hinge and the second half of the snap clamp. Typically, the second half of the upper track snap clamp consists of a hook and the second half of the base track snap clamp consists of a stop, which releasably engage to form a snap clamp. To do.

  After the base track is secured to a surface such as a wall, the upper track can be hinged to the base track with a combination of the first and second halves of the hinge. The upper track can then be pivoted about the hinge away from the surface for easy placement of the fabric on the second half of the snap clamp. By pivoting the upper track towards the base track, the first and second halves of the snap clamp secure the fabric between the halves.

  In a particularly preferred embodiment, a tab extends upward from the upper plate of the upper track adjacent to the second half of the snap clamp. This prevents shadow effects that may occur if the tab is not directly on the top track without tabs.

  In one embodiment, the upper track includes a brace that extends downward toward the base track. Typically, when high tensile forces caused by fabric tension are applied to the upper track, these forces are at least partially transmitted from the tension to the base track and surface. The struts are moved by high tensile forces to contact the base track and transmit these forces to the surface and to the base track. Typically, the brace moves to contact the first half of the base track hinge.

  In other embodiments, or in addition to the previously described embodiments, the base track includes a tensile force dissipator. The dissipator typically extends from the first half of the hinge and consists of the rising portion of the base plate of the base track. The rising portion typically forms an approximately inverted V shape. The high tensile force applied to the upper track is at least partially transmitted to surfaces such as tensile force dissipators and walls, for example through tensioning. The transmission and dissipation of tensile force prevents the snap clamp from coming off and releasing the fabric.

  Other features and advantages of the present invention will become apparent from the following more detailed description, taken in conjunction with the accompanying drawings, illustrating by way of example the nature of the invention.

  As illustrated in the accompanying drawings for purposes of illustration, the present invention resides in a track assembly for covering a wall with a cloth or the like. As mentioned above, the very tight pull of the fabric panel can put a very high load on the relatively lightweight hinge and track assembly structure. The span of the fabric to be stretched can exceed 30 feet x 25 feet, and the fabric panel alone can weigh over 50 pounds. In the prior art, there has always been a problem that the fabric may come off the track assembly due to the tensile force applied to the track assembly by the stretched fabric. Certain track assemblies, particularly those having a generally rectangular closed configuration, about 1 inch thick, can be deformed into a generally parallelogram due to the high tensile force of the stretched fabric. As described in further detail herein, the track assembly of the present invention discloses a design that has a high tensile force dissipation body that adapts to tension and high tensile forces, even in one inch thick assemblies.

  Referring to FIGS. 1 and 2, a wall-like surface 2 is shown that includes a cloth dressing 4 partially cut away and supported by a frame made of track assemblies 10 and 12, respectively. In the embodiment shown in FIGS. 1-8, the track assembly has a thickness to accommodate an insulating or sound absorbing panel 6, which can be constructed from fiberglass board or other suitable material, as described above. About 1 inch. As shown in FIGS. 1 and 2, the track assemblies 10 and 12 help to tension the fabric 4 on the wall 2 or other surface portion.

  With reference to FIGS. 3-6, the assembly is comprised of a base track 100 and an upper track 102 that can be pivotally connected to each other and selectively engaged. The base track 100 includes a substantially flat base plate 104 that contacts the wall 2. Base track 100 is attached to wall 2 by nails, glue or the like. Although the assembly is shown in pieces in FIGS. 1-3, the base track 100 and upper track 102 are typically several feet long to support the fabric, or the width of the fabric Or, it will be understood by those skilled in the art that they are sold in smaller segments where the ends are abutted to fit the length. Preferably, the base track 100 and upper track 102 are molded and made of an ABS plastic such as HB-8054, a flame retardant additive, so as to have a Class A rating for flame diffusion and smoke generation. Many prior art truck assemblies consist of PVC that emits high levels of smoke and chlorine gas when exposed to a flame.

  With continued reference to FIGS. 3-6, the base track 100 constitutes the first half of the hinge 106 that defines the groove 108. Typically, the hinge portion 106 is generally C-shaped or e-shaped, but is not limited thereto. Typically, the hinge portion 106 is slightly offset inward from the edge of the base plate 104, as will be described in further detail herein. The C-shape of the hinge bends and extends inward to act as a guide for rotation of the mating hinge member, as will be described in further detail herein. Compared to prior art designs, the curved extension also assists in locking the opposite hinge member.

  The upper half of the snap clamp 110 is generally opposite the hinge portion 106 and typically constitutes the opposite longitudinal edge. The snap clamp includes a base plate 104 and a hook or catch 112 that extends upwardly from the wall 2.

  The base track 100 of the present invention includes a tensile force dissipator. As shown, in certain preferred embodiments, the hinge portion 106 rises or extends away from the base plate 104 of the base track 100. The portion or leg 114 or 116 extends from the first half of the hinge 106 to the base plate portion 104. Such an arrangement typically forms an approximately inverted V shape. These portions 114 and 116 that form the dissipator will now be described in further detail.

  Referring to FIGS. 3 and 4, the assembly 10 also includes an upper track 102 that cooperates with the base track 100 to form the assembly 10 and securely lock the fabric 4 in place, as described above. . The upper track 102 is configured to be inserted into the groove 108 of the first hinge portion 106 of the base track 100 as shown in FIG. 5, thus the hinge between the base track 100 and the upper track 102. And a second hinge portion 118 forming a pivot connection. A second half of the snap clamp 120, including a hook or catch 122, is formed generally opposite the second half hinge 118, and the hook or catch 122 engages the hook or catch 112 of the base track 100. Thus, the snap clamp is releasably formed. Upper track 102 has what is referred to herein as an upper plate 124 extending between hinge portion 118 and clamp portion 120. In the embodiment shown in FIGS. 1 and 3-6, the structure or contour of the upper track 102 is industrially square as the upper plate 124 makes an angle of about 90 ° to the snap clamp portion 120. Called. With this structure, the final fabric panel edge is a substantially square edge.

  In a particularly preferred embodiment, as shown in FIGS. 4-6, the top plate 124 includes a tab 128 that extends a fraction of an inch from the top plate 124. Tab 128 lifts fabric 4 slightly above the parallel mounting surface of upper plate 124 to minimize the reflection of light from the extrudate and the associated shadow box effect encountered by prior art assemblies. Designed and dimensioned to be able to. As will be appreciated by those skilled in the art, this typically positions the fabric and aligns it with an alignment tape, such as a double-sided tape toward the snap clamp portion of the track assembly. Although not required, it is preferred because the alignment tape holds the fabric 4 on the upper plate 124 of the upper track 102 and the free end of the fabric is inserted between the tracks 100 and 102 and clamped firmly in place.

  The manner in which the first base track 100 and the second upper track 102 cooperate to facilitate tensioning and securing the fabric 4 is demonstrated by referring to FIGS. Base track 100 is typically secured to a wall or other surface with screws, nails or the like. The base track 100 design of the present invention provides access by various pneumatic or other tools for fastening. Referring first to FIG. 5, the hinge portions 106 and 118 of the tracks 100 and 102 are connected to the second hinge portion 118 of the first hinge portion 106 so that a pivotal relationship is created between the tracks 100 and 102. Are in operative contact with each other. Then, the cloth 4 is dropped onto the upper track 102, and the upper track is moved toward the base track 100. Finally, as shown in FIG. 6, the hook and receiving portions 112 and 122 or the clamp portions 110 and 120 are moved. Engage with each other and secure the fabric 4 between them. As a result, a very taut and taut fabric extends between the assemblies 10 as shown in FIGS.

  As mentioned above, particularly in the 1 inch system, the tension of the fabric 4 exerts a tremendous amount of force on the assembly 10, particularly the upper track 102, which acts to deflect the hinge assembly backwards. Alternatively, the entire assembly 10 may be deformed and moved to a parallelogram shape. The present invention overcomes this problem by adding a tension 126 that extends downward toward the base track 100. As shown in FIGS. 3-6, the brace 126 slopes downward toward the hinge and dissipator of the assembly 10. As a result, if excessive tension exists and the upper track 102 begins to be pulled backward, the tension 126 engages the base track 100 and transmits the tension to the base track 100 and thus to the surface of the wall 2. . In certain preferred embodiments, the struts 126 are moved so that force is transmitted to the rising portions 114 and 116 of the tensile force dissipator so that forces are transmitted through the portions 114 and 116 to the base plate 104 and the wall 2. And configured to contact the hinge portion 106 of the base track 100. Due to the transmission of these forces and the contact between the tension 126 and the base plate 100, the upper plate 102 remains in place and the fabric 4 remains taut. Furthermore, the assembly 10 retains its substantially square form and does not deform.

  Referring to FIGS. 7 and 8, the present invention has been described above with respect to a square form or contour, but it will be readily appreciated by those skilled in the art that other contours can be readily applied. For example, in FIG. 7, the assembly 12 is shown that the base track 100 is of the same configuration, but the upper plate 124 ′ of the upper track 102 ′ is shown to have an inclined configuration and profile, even when this is preferred. is there.

FIG. 8 is yet another assembly 14 embodying the present invention, where the base track 100 and its component elements are as described above, but the upper track 102 ″ is known as a gradient or bull nose in the art. Having an upper plate 124 '' having the form
In other respects, these assemblies 12 and 14 function in the same manner as described above.

  Referring to FIGS. 9-11, although a one inch thick system has been shown and described above, the present invention can also be incorporated into other sizes such as the illustrated 0.5 inch assemblies 16-20. . However, since the structures and functions of the assemblies 16-20 are as described above, the same numbers are used to identify the same structures in these embodiments 16-20.

  Referring to FIG. 12, the seam between two pieces of fabric 4 and 4 ′ is obtained by positioning the two track assemblies in close proximity to each other and clamping the fabrics 4 and 4 ′ within their respective snap clamps. Can be formed. As a modification, as shown in FIG. 12, the two track assemblies may be configured to separate the common base track 200. The base track 200 includes opposed hinge portions 206 having tensile force dissipators 214 and 216 and a generally flat base plate 204 extending between the tensile force dissipators. The hooks or catches 212 extend upward from the base plate 204 so as to form a snap clamp with the upper track 202 spaced apart and diametrically opposed. As shown, the two upper tracks 202 each support a separate piece of fabric 4 and 4 ′ and are pivoted toward each other to be combined with the base track 200. The forces acting on the assembly 22 are handled in the same manner as described above with the use of the tension 226 and the dissipative bodies 214, 216. Thus, a tight seam can be formed between the two pieces of fabric 4 and 4 'without having to carefully reposition the assembly relative to each other.

  Referring now to FIG. 13, yet another truck assembly 24 embodying the present invention is shown. This embodiment 24 is very similar to the embodiment 10 described above with respect to FIGS. As such, the assembly 24 includes a base track 300 having a base plate 304, a first hinge portion 306 and a first snap clamp portion 310. Tensile force dissipators 314 and 316 that rise from the base plate 304 and extend from the hinge portion 306 are also formed as part of the base track 300. The upper track 302 has a second hinge portion 318 operably mated with the first portion 306 to form a hinge, an upper plate 324 extending down to the second half of the snap clamp 320 (in this case with a square contour). But it will be readily appreciated that other contours are possible.). The brace 326 extends downward toward the base track 300, and more particularly toward the second hinge portion 306 and the tensile force dissipators 314 and 316. In this case, however, the hump 330 is formed on the base track 300, more specifically on the first hinge portion 306, and the strut 326 is moved into contact with the first hinge portion 306, but its rearward movement. Is hindered by the hump 330.

  Referring to FIG. 14, yet another truck assembly 26 embodying the present invention is shown. Similar to that shown and described above, the base track 400 includes a base plate 404 having raised portions 414 and 416 that constitute a tensile force dissipator. The first hinge portion 406 preferably rises from the base plate 404 and extends from the tensile force dissipation bodies 414 and 416. The first clamp portion 410 is formed substantially opposite the hinge portion 406.

  Upper track 402 includes a second hinge portion 418 that operably engages first hinge portion 406 to form a hinge. A second snap clamp half 420 is formed generally opposite to the first snap clamp half 420 operably engaged with the first snap clamp half 410 of the base track 400. Combine with the clamp half. In this case, the top plate 424 has a bull nose profile, but other profiles are also envisaged. In this assembly 26, the strut 426 of the upper track 402 does not extend downward at an angle toward the hinge but extends downward in front of the hinges 406 and 418. When excessive force is applied to the upper track 402, the strut 426 is moved laterally to engage the lower hinge half 406, and at least a portion of the tensile force is passed through the portions 414 and 416 to the base plate 404, thus the surface. Or transmit to the wall 2.

  Referring now to FIG. 15, an assembly similar to that described above in the sense that it includes a base track 500 and an upper track 502 that are pivotally connected to each other and can be combined to pull the fabric 4. Yet another embodiment of the present invention is shown. However, in this case, the portions 514 and 516 forming the tensile force dissipator extend upward from the continuous base plate 504. Portion 516 is slightly spaced from first hinge half 506. In this case, the first hinge half 506 is semicircular to include a slot or keyway 530. The second hinge portion 518 of the upper track 502 includes a tab or key 532 configured to be received within the keyway 530 when the assembly 28 is in the closed locked position, as shown. The second portion of the hinge 518 is also semicircular and extends around the first half 506 of the hinge. The brace 526 extends from the upper plate 524 to the second hinge member 518. When there is excessive fabric tension, the tension 526 and the second portion 518 of the hinge engage the first portion 506 of the hinge and transmit the force to the base plate 504. In extreme cases, the hinge 506 is moved into contact with the portion 516 to further transmit force to the base plate and the wall 2.

  With respect to hinges 506 and 518, the larger hinge member is slightly heavier and has a circumference of more than 220 °, and the outer second hinge half 518 is in place due to the slot or keyway 530. It can be removed from the inner hinge 506 that flexes when snapped closed and returned to the inner hinge. When the inner hinge 506 is engaged, the hinge assemblies 506 and 518 can rotate from fully open (from a 0 ° angle to a 90 ° fully closed lock as shown). When in the fully open position, the outer hinge portion 518 rotates on the inner hinge portion 506. As the outer hinge portion rotates and closes to the locked position, the tab or tab 532 falls into the keyway opening 530 and moves the entire outer portion 518 laterally. This lateral movement helps the assembly 28 securely lock the fabric 4 in place.

  Referring now to FIG. 16, similar to that described above, the assembly 30 includes a base track 600 and an upper track 602 that operably locks and pulls the fabric. Base track 600 includes a generally flat base plate 604 that includes a first hinge half 606 formed at one end of base plate 604 and a first snap tab portion 612 formed at the other end of base plate 604. Have

  The first hinge half 606 is removably received with the second hinge half portion 618 of the upper track assembly 602 to form a pivotable engagement between the tracks 600 and 602. , Approximately C-shaped. An upwardly extending stop 612 engages a hook 632 directed downward of the upper track 622. Serrated notches 630 frictionally engage hooks and stops 622 and 612 with each other. The fabric can be extended around the inner hook 632 to further retain the fabric within the inner hook 632.

  In this case, the strut 626 extends downwardly toward the base track 600, particularly the first half 606 of the hinge. It should be noted that the first half 606 of the hinge does not rise from the base plate 604 and therefore does not have an upwardly extending portion that constitutes the tension dissipator of the previous embodiment. Instead, when an excessive tensile force is applied by the stretched fabric, the tension 626 transmits a portion of the tensile force to the base track 600, and thus the wall surface 2, while the upper track 602 does not move or deform excessively. As such, it moves to engage the base track 600, in this case the hinge member 606 of the base track 600. As before, tabs 628 can be used to prevent shadow effects similar to those described above.

  The track assembly of the present invention is implemented in a general architectural design that is prevalent in walled track systems. The assembly can be tightly attached to a wall or sound absorbing panel with fabric or vinyl, and the panel can be removed in the future for decoration or facility access changes without having to replace the entire panel. Thus, the present invention provides significant cost savings to the end user. The force applied by the cloth is directed to the assembly hinge and cannot escape. The assembly is designed to minimize any shadow effect and prevent the outer member from popping out when tension is increased when the outer member is rotated closed. The assembly of the present invention also allows an installer to more easily open and close the assembly without excessive hitting with a scissors or the like.

  While several embodiments have been described in detail for purposes of illustration, various modifications may be made to each without departing from the scope and spirit of the invention. Accordingly, the invention is not limited except as by the appended claims.

FIG. 3 is a fragmentary side perspective view of a pair of track assemblies supporting a fabric therebetween embodying the present invention. FIG. 2 is a cross-sectional view similar to FIG. 1 but showing an insulation or sound absorbing panel between the track assemblies. FIG. 3 is a perspective view of a base track attached to a surface and an upper track positioned for attachment thereto. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a cross-sectional view similar to FIG. 4 but showing the hinge assembly closed to secure the fabric. FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 1, showing a state in which the cloth is fixed with the track assembly closed. FIG. 7 is a cross-sectional view similar to FIG. 6 but showing a tilted configuration. FIG. 7 is a cross-sectional view similar to FIG. 6 but showing a bull nose configuration. FIG. 7 is a cross-sectional view similar to FIG. 6 but showing a 0.5 inch system. FIG. 10 is a cross-sectional view similar to FIG. 9 but showing a bull nose configuration. FIG. 10 is a cross-sectional view similar to FIG. 9 but showing an inclined configuration. FIG. 6 is a cross-sectional view of another track assembly embodying the present invention that creates a seam between two pieces of fabric. FIG. 6 is a cross-sectional view of another truck assembly embodying the present invention. It is sectional drawing which shows other embodiment of the track assembly of this invention. It is sectional drawing which shows other embodiment of a track assembly. It is sectional drawing of other embodiment of this invention.

Claims (9)

A track assembly for supporting a fabric on a surface,
A base track constituting the first half of the hinge and the first half of the snap clamp;
An upper track constituting the second half of the hinge and the second half of the snap clamp;
An elongated body positioned between the second half of the hinge and the second half of the snap clamp and extending away from the snap clamp at a non-vertical angle toward the surface of the base track tension dissipator facing the snap clamp Having a tension,
The surface of the tensile force dissipator consists of the outer surface of the first half of the hinge facing the snap clamp,
After fixing the base track to the surface, the upper track can be hinged to the base track by connecting the first half and the second half of the hinge,
The upper track can then be pivoted about the hinge away from the surface to facilitate placement of the fabric on the second half of the snap clamp, followed by the upper track toward the base track. By turning, the first and second halves of the snap clamp secure the fabric between these halves,
A high tensile force applied to the upper track is at least partially transmitted from the tension to the base track and the surface,
A track assembly for supporting a fabric on a surface.   The assembly of claim 1, wherein the first half of the hinge is spaced from the base plate by a portion of the base track extending from the base plate. The assembly of claim 2 , wherein the portion forms a generally inverted V-shape between the base plate and the first half of the hinge.   The assembly of claim 1, comprising a longitudinal tab extending upward from the top plate adjacent to the second half of the snap clamp to prevent shadow effects.   The second half of the upper track snap clamp consists of a hook and the second half of the base track snap clamp consists of a stop, which are configured to releasably engage to form a snap clamp. The assembly according to claim 1.   The assembly of claim 1, wherein the base track has a base plate having an extension that extends from the middle of both ends of the base track to form a tensile force dissipation body.   The assembly of claim 1, wherein the tensile force dissipator includes a hump adapted to limit the movement of the tension on the surface facing the snap clamp. Extending from the outer surface of the first half of the hinge, comprising a hump adapted to limit movement of the strut due to high tension assembly of claim 1.   The assembly of claim 1, wherein the upper track has an upper plate between the second half of the hinge and the second half of the snap clamp.

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